Download the People Group List (16 languages .csv)

Amharic - አማርኛ | Arabic - عربي
Bengali - বাংলা | Chinese (Simplified) - 中文（简体）
Chinese (Traditional) - 中文（繁體) | French - Français
German - Deutsch | Gujarati - ગુજરાતી
Hindi - हिन्दी | Indonesian - Bahasa Indonesia
Korean - 한국어 | Nepali - नेपाली
Portugese - Português | Russian - Русский
Spanish - Espanol | Tagalong / Filipino
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The Gresi of Indonesia

The Gresi of Indonesia, numbering approximately 4,100 people, are No Longer Unreached. They are an Indigenous Papuan people of Jayapura Regency, centered in villages west of Lake Sentani, whose traditional Gresi language is closely related to Kemtuik. They mostly adhere to Animism and Indonesian is their primary language.

Photo by Google. (2026). Image generated by Gemini 2.5 Flash: Gresi

Fast Facts:

Affinity Group: Pacific Islander Peoples
Country: Indonesia
People Cluster: New Guinea
Primary Language(s): Indonesian (ind)
Primary Religion(s): Animism
Population: 4,100
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical
People Group ID: PG022920
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Pray for the Gresi of Indonesia

Join others around the world in praying for the lost to be saved, the gospel to advance, the global Church to grow, and for laborers to be sent out and sustained in the harvest.

Pray Now!
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Dig Deeper (Religion):

Primary Religion: Animism
Religious Affiliation: Ethnoreligion

80%
%
Animism Adherents

Dig Deeper (Language):

Primary Language: Indonesian
Language Family: Austronesian

100%
%
Indonesian Speakers

Media Resources in Indonesian:

Films:
TitleLink
JESUSView Film
JESUSView Film
MagdalenaView Film
The SaviorView Film

4 films

Provided by the Jesus Film Project

View all resources

Bible Resources in Indonesian:

Bible Name (Translation)VideoAudioText
Indonesian New Translation (formal) Version, 1974✓✓✓
Indonesian New Translation (formal) Version, 1974✓✓
Plain Indonesian Translation✓✓
Sehari-hari✓
Shellabear NT Kitab Suci Injil (Terjemahan 1912)✓✓✓
Shellabear OT Association for the Restoration of the 1912 Translation✓✓

6 entries

Provided by Faith Comes by Hearing

Or check out the Indonesian bible at Bible.com

Linked from YouVersion

View all resources

SPI: No longer Unreached

The Gresi are No Longer Unreached, which means there are more than 2% evangelical Christian populations and there are churches consistent with evangelical faith and practice. There is still more to be done among them.

Next steps for the Gresi:
Empower local believers to begin praying for their own people
Continue gospel seed sowing and church planting
Encourage local leaders to being leading church planting strategy and looking for Unreached and Unengaged groups nearby

Pray specifically for the Gresi of Indonesia

Only in the LORD, it shall be said of me, are righteousness and strength; to him shall come and be ashamed all who were incensed against him.
readIsaiah 45:24

Pray that those who are weary and burdened by their own righteousness will find rest in the righteousness that comes through faith in Christ alone.

I saw in the night visions, and behold, with the clouds of heaven there came one like a son of man, and he came to the Ancient of Days and was presented before him. And to him was given dominion and glory and a kingdom, that all peoples, nations, and languages should serve him; his dominion is an everlasting dominion, which shall not pass away, and his kingdom one that shall not be destroyed.
readDaniel 7:13-14

Pray that the gospel will advance so that all peoples will come to know the Son of Man, who has been given dominion and glory and a kingdom, and that they will bow before Him and serve Him forever.

For “everyone who calls on the name of the Lord will be saved.”
readRomans 10:13

Pray that as people place their faith in Christ and sometimes have doubts, God will help them remember and trust the power of Jesus to save them from their sins.

Blessed be the God and Father of our Lord Jesus Christ, the Father of mercies and God of all comfort, who comforts us in all our affliction, so that we may be able to comfort those who are in any affliction, with the comfort with which we ourselves are comforted by God.
read2 Corinthians 1:3-4

Pray that as people hear and believe the gospel, they will serve others in Jesus' name, and the lost will have an opportunity to hear and respond to the gospel.

Gresi Across Countries (ROP3 - 103486) reported in the following countries:

Strategic Progress Index
All

1 people group

PhotoPeople Group IDNameCountryPopulation ▼Strategic Progress IndexLanguageReligion
GresiPG022920GresiIndonesia4,100No Longer UnreachedIndonesianAnimism

To download a comprehensive people group list in spreadsheet form, visit our Research Data page.

Peoplegroups.org relies on updates from the field and other organizations for much of our data, so if you have any updates, please contact us. We use various international naming standards. For a list of these standards and fields, visit our Data Standards section.

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